Download - fasa-fasa bulan
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Phases of The Moon
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Moonlight
• The Moon does not emit light.
• It reflects the light from the Sun.
• The Moon looks bright at night.
• During the day the Moon cannot be seen because the sunlight is very bright.
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The reflection of sunlightto the earth
MoonSun
Earth
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Phases of the Moon
• The shape of the Moon changes from time to time.
• The changes occur because the area of the Moon surface that reflects sunlight changes while the Moon is moving around the Earth.
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• The phases of the Moon consist of:
– New moon– Crescent– Half moon– Full moon
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New Moon
• Occur when the surface of the Moon that is not illuminated by the Sun faces the Earth.
• The Moon cannot be seen from the Earth.
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Crescent phase
• Only a small portion of the Moon that is illuminated by the Sun faces the Earth.
• The Moon appears to look like crescent from the Earth.
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Half Moon phase
• Half of the Moon surface that is illuminated by the Sun faces the Earth.
• The Moon appears to look like a half circle.
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Full Moon Phase
• The whole illuminated surface of the Moon faces the Earth.
• The Moon appears to look like a circle.
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• The sequence of these moon phases will repeat consistently.
• The duration of the Moon from one phase to the next similar phase is 29½ days.
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Sunlight
Old Crescent
New Moon
Crescent
Half Moon
Gibbous Moon
Full Moon
Gibbous Moon
Half Moon
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The various shape from a full moon to a new moon
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Lunar Calendar
• The Lunar Calendar is a calendar created based on the revolution of the Moon around the Earth following the phases of the Moon.
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• Based on the lunar calendar:
– New Moon can be seen on the first day of lunar calendar.
– Crescent can be seen on the 3th day of Lunar calendar.
– Half Moon can be seen on the 7th day of Lunar calendar.
– Full Moon can be seen on the 15th day of the Lunar calendar.
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September 2007
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• New Moon – anak bulan
• Crescent – bulan sabit
• Half Moon – Bulan separa
• Full Moon – bulan purnama
• Reflect – memantulkan
• Phases – Fasa
• Lunar Calendar – Takwim Qamari
• Emit – memancarkan